Bed-sofa.



J. M. 6L A. G. BOSTROM.

BED SOFA. HPLIOATION rILBD mm1?. 1am.

Patented June 24, 1913` 2 SHEETS-SHEET 1.

J. M.& A. G. BOSTROM.

BED SOFA.

APPLIUATION FILED JUNE 17, 1912.

Patented June 24, 1913.

2 SHEETSSEEET 2.

'UNITED STATES PwngENr OFFICE.

JOHN M. BOSTROM AND AXEL G. BOSTROM, OF MILWAUKEE, WISCONSIN.

BED-SOFA.

Specification of Letters Patent.

Patenteaatme 24,'v'1913.

Application led .Tune 17, 1912. Serial No. 703,996.

Be 'it known that we, JOHN M. Bos'rRoM and Axel. G. BosTRoM, both of Milwaukee, \\'isconsin, have invented a Bed-Sofa, of which the following is a specification.

This invention relates to that class of furniture which is adapted in its normal or folded position to form a sofa or lounge and which can be unfolded so as to form a bed of -d'ouble the width; these devices being c nmonly`known in the trade as davenportsf 1 The lobject of our invention is to provide an article of this class with a superior arrangement and construction of the parts.; making it easier tofold and unfold, more readily accessible, more comfortable to sleep onas a bed and providing means whereby it cannot possibly fold up of itself;l and arranged in such manner that when so folded, no part shall be visible to the eye which will iii-alie its use asa bed apparent.

Y`In, the accompanying drawings, Figure l is a side elevation of the bed-sofa with the end-side of the sofa nearest the observer removed, being substantially a transverse section on the plane 1 ofv Fig. 2; Fig. 2 is a front viewcf one end of the bed-sofa, a ortion of the front-board and of the seat `icing' broken away; Fig. 3 is a view similar to Fi l, showing, however, the parts in parta lynnfolded position and in fully unfolded position iii full and dotted lines respectively; Fig. 4 is a plan view of one end ofthe sofa in unfolded position; Fig. 5 is a. fragmentary transverse section substantially on the plane 5 of Fig. 2, looking inthe direction ofthe arrow; Fig. 6 is a perspective view of the interlocking elements 0n the seat Vandbaclr; and Fig. 7 is a fragment-ary' 1on- 4gitudinzil section on the plane 7 Showing the part H in section on the left, and parts above the section plane on the right.

The sofa-frame, which is the stationary portion, consists of the usual end-portions.A, supported upon front and rear leg-posts a' and a2 andcasters a3, or otherwise designed 1in any preferred manner, and united at the backby an upholstered back member B and a back-board B or otherwise. The cushion back- B is referably pivoted on a pair of pivot-pins so that it can swing through a small `angle, as illustrated in dotted lines in' Fig. 3, for t-he purposes hereinafter mentioned; but this is not essential to the invention.

At t-he front of the sofa and at each end, adjacent to the respective members A on their inner sides, are a pair of swingingmembers C, each formed preferably of sheet metal carrying a headed trunnion c', which is adapted to engage with a slot-ted bearingblock af, secured to member A, the slota in said block extending downward from'the top and forming a socket in which the shank of the trunnion c is adapted to rest and turn.7 the head of the trunnion holding. it in Aengagement and this holding also the two permanently connected the twoV bed-halves D :md E. Eachv of thel two bed-halves consists of a three-sided vframe formed of angleirons d and'c on the endsand pipes d2 and e2 on the sides opposite the pivots 02 land '03, these pipes having their ends flattened and riveted to the angles d and e as shown in Fig. 4. Between the end-bars df ande', on the respective bed-halves is stretched/aree tangulai-mesh bed-bottom F which extends A, across the two bed-halves, in such manner,

however, as not to interfere with their folding movement. It is` not, however, essential that the bed-bottom should begofrectanguL lar mesh. The endsY of the bed-bottom tire connected by rod-links f andhelical'springs f2 to the hars d and e', wherebyfin fthe folded position, Figs. 1 and 2,' the links f and springs f2 on the adjacentfinner ends of the frames D and E can spread t'o s. certain extent by the-stretching osaid springs, as illustrated at f3 in Fig. .2.

The two members C have each a ange c?, by which they are secured to the lowex'fhalf G of the front-board of the sofa., this'serv- 4bottom-imesh F a tubular strut H is 11sed,

this being commonly in the form of an ironpipe which is bent obliquely at its ends so that the middle portion thereof rests against the front-board G and is secured thereto by clips lz. while the ends abut against the free edges of the inei'nbers C, being seated upon bosses c5, Fig. 7. y

The combination of the frontboard G takenwith the two members C and strut H form together a rigid member of the framework, a structure which will be herein termed a frame-member.

The lower bed-half E is guided so as to maintain a substantially horizontal position vin the folding and unfo ting movement by la set of links which include the member C, pivoted at c', as one swinging arm, a member e3 pivoted at e* at the back of the sofa -for the other swinging-arm` and an intermediate link e connected to the members C and e3 at pivots e and eT respectively, the flange c* being provided with an ear c upon which the pivot e is placed. The bod-bottom E, which is also pivoted to the member C, is held in nearly parallel relation to the line joining the pivots e9 and e10 being ape at es and to the angle-iron e at @10, the link joining the pivots e9 and 61 being approximately equal and parallel to the line joining the pivots e6 and G3 as shown. In the folded position, the links e5 and es fold upon the angle-iron e as in Fig. 1, and in the unfolded position, as will be seen from Fig. 3, the bed-bottom-half E is raised to a horizontal position on a level with the upper margin of the member C, and the latter has upon said upper margin an inwardly extending flange cT which abuts upon the top of the angle-bar e and also of the angle-bar d of the upper bed-half D in such manner as to hold the member C in rigid relation tol both members.

The upper bed-bott-om-ha'lf l) is formed independently of the sofa-seat, I, which latter is formed of a rectangular fra me in the usual manner, upholstered with a cushion z", which is attached to its under side the hourglass springs i2, these latter being preferably inelosed and the frame covered on its under side by a sheet of canvas or burlap 3. The said frame I has its front-board depending below the remainder as shown at a" so as to 'form the upper half of the front-board, adjoining and being in the closed position of the bed-sofa continuous with the. lower portion G. The seat-frame I is hinged to the member C by means of metal hinged pieces i5, and it is also connected to the bottom-half l) by a link-J which is pivote/d thereto at j. One end of lthe. link .Illas a slot jg, through which passes a. pin or screw j, which is secured to an ear j* on the angle-bar 'While the other end j of said linl: forms a leg or support which, in the unfolded position of the bed-sofa, rests upon the Hoor and supports the frame I, the latter in turn vsupporting the frame D at its outer edge, the said bar d2 resting thereupon.

When the bed sofa is to be unfolded, the seat I is grasped at the back (for which purpose any suitable strap or handle may be provided) and turned over upon its pivot in the ma nnerrshown in Fig. 3. This drags with it, because of the link-conliection J, the bed-- bottom-frame l), and this in turn pulls over the frame-member which consists of the two members C, the longitudinal board G and the strut H, turning upon the trun- This action in turn raises the bedbottom E in themanner showin, so that when the link J, being turned into a position nearly at right angles with the seat-frame I, strikes upon the tloor, and limits the further opening movement, the two half-frames D and E ofthe bed-bottom have reached a horizontal position on the same level, in which position they are rigidly held by the en'- gaging-tiange c of the member It Will be found now that any ordinary weight that canbe plaedupon the bed-bottom-half E will be insutlicient to cause the reversal of the movement and shut up the sofa, especially because of the link connections e3 and e whereby the weight of a person lying upon the back-half of the member E will tend to keep the bed open rather than to close the same.

Vhere the sofa-back B is pivoted as shown, we provide a hook and eye engagement between it and the seat I, the same consist-ing of two or more apertured plates b: secured to the sofa-back B, and the same number of hooked bars i on the back-edge of the seat I, which are adapted to engage in the apertures b of the plates b2; thus, in closing the sofa, the hinged back B is swung forward into position of engagement, and this prevents any crack or opening between the seat andV back, through which articles might. drop or which would be unsightly, and it further serves to support the weight of persons resting upon the seat which would otherwise come directly upon the unsupported free edge of the bed-bottom-half D. Furthermore., by pivoting the back a greater amount of free space is allowed in the open position of the bod-sofa, the back B can be swung back so as to be free of the back-end of the frame E. Also a pair of bent straps K are attached to the sides of the frame-members A to form supports for the rear ends of the frame I) and links e5 in the folded position of the bed-sofa. I t will be observed@ that in said folded position ample space is provided between the bedbottom-halves for the storage of mattresses and bed-coverings.

We wish it understood that our inventioiy is not limited to the use of all the above de` scribed features and constructions, for some llt may be omitted and others may be varied orl halves pivoted to said frame-member, and a4 connection between said seat-member andone of said bed-bottom-halves, whereby the reversal of the former carries with it the latter, rotates said frame-member, and moves the other bed-bottom-half to a level and abutting position with the first.

2. In a bed-sofa, the combination with the supporting sofa-frame of arame-meiw ber pivoted on trunnions at the front side of said frame, said frame-member having a pair of plates on its-ends extending in the plane of rotation, a pair of bed-bottomhalves comprising frames pivoted to points on said plates distant from said trunnions, and a seat-member pivoted adjacent to said trunnions; saidv seat-member being reversible and having means for supporting it in a reversed position, and one ofvsaid bed-bottom-halves being also reversible and when so reversed extending over the reversed seatinember; the other bed-bottom-half having devices on which it. is mounted to rise and fall and to be raised to a level with the first bed-bottoIn-half in the reversed position of the latter. Y 3. In a bed-sofa, the combination with the supporting sofa-trame ot a frame-member pivoted upon trunnions at the front side thereof and having rearwardly extending plates lying in the plane of rotation, said plates having each a pair of pivots at the side distant from -said trunnio-ns, a bed-bottom-half comprising a frame pivoted to the lower or rear pair of pivots, link-work supportingr and guiding ,the movements of said bed-bottoIn-half whereby as said framelnember turns upon its pivot the bed-bottom-half is raised and lowered in nearly parallel position, and a second bed-bottomvhalt comprising a frame turning on the upper or front pair of pivots and adapted for reversal: .there'being a Connection' be'- tweensaid frame-member and the said last named bed-bottem-half whereby the rotation ot' the latter through 18() degrees to the reversed position carries with it said frame,- member through an angle sutlicientt0 raise said tirst named bed-bottom-half to a level with the other bed-bottom-half.

` 4. In a bed-sofa, the combination with the `plates flying in the plane of rotei supporting sofa-frame, of a frame-member pivoted upon, trunnions at the front side thereof and having rearwardly extending plates lying in the plane of rotation, said plates having each a pair of pivots at. the side of each plate distant from said trim-,i

nions, albedbottom-half comprising a'frame pivoted to the lower or rear. pair of pivots, link-work supporting and guiding the move# mentsof said bed-bot-tom-half whereby as said frame-member turns upon its pivot the bed-bottom-half is raised and lowered in nearly parallel position, a second bed-bot'- tom-half comprising a frame turning on the upper or front pair of pi-vets and adapted for reversal; there being a connection between said frame-member and said lastnamed bed-bottom-half whereby the rotation of the latter through 180 degreesto the reversed position carries with it saidftframe` member through an angle sutiicient ,"o raise said first-named bed-bottom-half to a 'level' with the other bed-bottom-half; a seat mem\ ber, and a folding leg at each end foi-nr' ing a connect-ion between said seat-member and said last named bed-bottom-half adapted to support said last-named bed-bottom.- half in theyreversed position.

5. In a bed-sofa, the combination with the supporting sofa-frame of 'a` frame-lueur bei pivoted upon trunnions at the front side thereof. and 'having rearwardly extending plates lying in the plane ofrot'a't-ion, said plates having each a pair ofpivots at the side distant lfrom said trunnions, a bedbottomehalf comprising a frame pivoted to the lower or rear pair of pivots, link-work supporting and guiding the movements of said bed-botLom-half whereby as said framemember turns upon its pivot the bed-bottomhalf is raised and lowered in nearly parallel position, a second bed-bottoln-halt comprising a frame turningr on the upper or front pair ot pivots and adapted for reversal; there being a connection between said framemember and said last-named bed-bottomhalf whereby the rotation of the latter through 180 degrees to the reversed position carries with it said frame-member through an angle sutiicient to raise said. first namedbed-bottonhalf to ya level wit-h the other bed-bottoni-half; a seabmember pivoted at theiront side of said sofa-frame, a pair of folding legs pivoted on the ends of said seat-member and adapted .to support the same in a reversed position, and a pinand-slot connection betWeensnid sejatmem ber and said reversible bed-bottm-half,

wherebythe reversing of the formerf'arries with it the latter.

6. In a bed-sofa, the combinatiop ivith the supporting sofa-frame of a fragte-member pivoted 'upon trunnions at the thereof-and having rearwardly Extending ion, said plates having each a pair of pivot-s at the side distant from said trunnions, a bedbottom-half comprising a frame pivoted to the lower or rear pair of pivots, link-Work supporting and guiding the movements of said bed-bottom-half whereby as said frameinember turns upon its pivot the bed-bottomhalf is raised and lowered in nearly parallel position, a second bed-bottom-half comprising a frame turning on the upper or front pair of pivots and adapted for reversal; there being a connection between said 'traineniember and said last-named bed-bottomhalf whereby the rotation of the latter through 180 degrees to the reversed position rai-ries with it .said frame-member through an angle sutiieient to raise said first-named bed-hottom-half to a level with the other hed-bottom-half; a seat-member pivoted at the front side of said sofa-f arne, and a pair of folding legs pivoted on the ends of said seat-member and adapted to Support the same in a reversed position; each leg having an extension connected With said reversible bed-bottom-half by a pin-and-slot connection whereby on reversing the seat-member ,said reversible bed-bottom-half is carried with it and said leg is extended into operative position, and on folding back said seatinember into its normal position, said leg is automatically folded against the side thereof.

7. In a bed-sofa, the combination with the snpl'lorting sofa-frame of a frame-member pivoted upon trunnions at the front Side thereof and having rearwardly extending plates lying in the plane of rotation, said plates having each a pivot at the side distant from said trunnions, a hed-bottom-half cmnprising a frame pivoted on said pivots, a pair of links pivoted to the respective ends of the frame-member and extending rearwardly, a second pair of links pivot-ed to the sofa-frame at the baek and pivotally conneeted to the rear ends of said first pair of. iinks. and a third pair of links connecting the first pair of links with the respective ends of said bed-bottom-half wherebytho rotation of saidf frame-member produces an upward movement in said bed-b'ottoni-half and said bed-bottoln-half is supported by said third pair of links; in conjunction with means for rotating said frame-member.

8. ln a bed-sofa, the combination with the supporting sofa-'frame of a frame-Incinher pivoted upon trunnions on the front side thereof and having rearwardly extending plates lying in the plane of rotation, .said plates havingneaeh a pair of pivots at the side distantfrom said trunnions,"a bedbottom-half Comprising a frame pivoted to the lower or rear-most pair of pivots, a pair of links pivoted to the respective ends of the frame-member and extendin 'i rearwardly, a second pair of links pivotedfto the sofa-frame at the back and pivotally eonnected to the rear ends of said first pair of links, and a third pair of links Connecting the first pair of' links with the respective ends of said bed-bottom-half whereby the rotation of said frame-member produces an upward movement in said bedbottorn-half and said hed-botton'i-half is supported by .said third pair of links, in eonjunftion with a second hed-bottom-half pivoted to the upper and forward pivots of said frame-member, means for supporting said second bedhottom-half when reversed, and a flange on each of the plates of said frame-member extending across the ends of the two bedbottolnhalves and adapted to engage therewith in the extended position of the bed whereby said bed-bottom-halves are brought into and maintained in substantial alinelnent.

9. ln a bed-sofa, the eoi'nbination with the supporting sofa-frame of a frame-member pivoted upon trunnions at the front side thereof and having rearwardly extending plates lying in the plane of rotation, said plates having each a pair of pivots at the side distant from said trunnions, a bed-bottom-half comprising a frame pivoted to the lower or rearxnost pair of pivots, a pair of links pivoted to the respective ends of the 'frame-member and extending rearwardly, a second pair of links pivoted to the sofa-frame at the back and pivotally connected to the rear ends of said first pair of links, and a third pair of links connecting the first pair of links with the respective ends of said bed-hottom-half, whereby the rotation of said frame-member produces an upward movement in said bed- 'oottom-half and said bed-bottom-half supported by said third pair of links; in conjunction with a second bed-bottom-halt' pivotcd to the upper and forward pivots of sa id frame-member, folding supports for said seoond hed-lntieni-half when reversed` and a flange on each of the plates of said framemembcr extending across the ends of the. two hed-bottom-halves and adapted to engage'therevvith in the extended position or the hed whereby said hed-bottom-halves are brought into and maintained in substantial alineinent.y and a reversible seat-member pivoted to the front of said sofa-frame and :'nlapted to overlie said second bed-bottomhalf` in the closed or folded position and to underlie the .saine in the open or reversed position.

i l0. ln a bed-sofa, the combination with the .sofa-.frame of the front-hoard pivoted on trunnions, a reversible seat-member pivotally connected tl'ierewith, upon an axis at the upper edge otsaid front-hoard and having' a front piece whioh in the closed position is suimttiniially rf-,ntinuous with said front-board, a reversible bed-bottom half also pivotally Connected with ille frontlmu'd. and a nmnPverSible bell-bottoni lmlf also pivotully Connected with the front lmuid.

1l.. In a beds0fn the combination with tlm slalinnzu'y sofa-frame of the framenwn'llmr pivolally mounted at im ends upon Liunninns, a, linlniemhei pivotully mounted :it the back of the frame, :i .svcmnl linkmouiller pivotally connected with said firstnzxnwd link-member and with Vnifl pivotal fwnw-melnlwr, n nonrevm'silil@ bod-lmntmw lmlf pivoted lo said l'i'nmarn'wmbei', and n l iliiwl link-meunier pimtvally connected will] nifl Secondmamed link-membei :inil will l-e-l-li0t0x1l1ulf and supporting the lzillifi.

l?. ln a bedsofa, the cmnbinuiion with illu Statinnzlry Sofwfifamo of the l'l'armL monibex pivntally mounted ai. ih: @nds upon tizu'snimns, n linli-nimnl'ier pivutnlly Ummm-1l zu; Elie lmcl; of the frame, :i Sucunfl link iwinmr pimully Connected with Suini lirsb i 

